Name the formula for calculating frequency and be able to apply it in calculations.
Name the formula for wave speed and be able to apply it in calculations.
Apply these two new formula's in beginner and more advanced calculations.
Explain how instruments get their distinct sound.
Slide 9 - Tekstslide
Discussing the homework
The worksheet
The video
Slide 10 - Tekstslide
Properties of a wave
Wavlength
Frequency
Amplitude
Wave speed
Period
Slide 11 - Tekstslide
wavespeed=frequency⋅wavelength
Slide 12 - Tekstslide
v=f⋅λ
wavespeed=frequency⋅wavelength
Slide 13 - Tekstslide
v=f⋅λ
wavespeed=frequency⋅wavelength
v: speed (m/s)
f: frequency (Hz)
λ: Wavelength (m)
Slide 14 - Tekstslide
Practice exercises
A sound wave travels through a steel plate. The sound wave has a frequency of 300 Hz and a wavelength of 17 meters. Calculate the speed of sound in steel.
A ripple in a pond has a frequency of 2 Hz and a speed of 0,8 m/s. Calculate the wavelength of this wave.
Slide 15 - Tekstslide
Frequency=period1
Slide 16 - Tekstslide
f=T1
Frequency=period1
Slide 17 - Tekstslide
f=T1
Frequency=period1
f: Frequency (Hz)
T: Period (s)
Slide 18 - Tekstslide
Practice exercises
A wave has a period of 0,25 seconds. Calculate the frequency of this wave
A wave has a frequency of 440 Hz. Calculate the period of this wave.
A wave has a period of 5 seconds. Calculate the frequency of this wave.
Slide 19 - Tekstslide
v=f⋅λ
f=T1
Slide 20 - Tekstslide
Learning goals
Name the formula for calculating frequency and be able to apply it in calculations.
Name the formula for wave speed and be able to apply it in calculations.
Apply these two new formula's in beginner and more advanced calculations.
